Originally Posted by loc n slope

When a hat is optional, wearing one says you're a bit of a tool. You want people to look at you in awe that you're a pilot. Or maybe management type. Plenty of people they wear hats when optional and they're just fine.

When any part of the uniform is mandatory and not worn purposely, they're just too cool for school. Probably a huge db, immature, and the type that will cheat a walk-around, leave out call-outs, and show that the checklist has been memorized when one has been called for.